//
//  Dog.h
//  手动内存管理
//
//  Created by FelixYin on 2020/4/12.
//  Copyright © 2020 FelixYin. All rights reserved.
//

#import <Foundation/Foundation.h>

NS_ASSUME_NONNULL_BEGIN

@interface Dog : NSObject

- (void) run;

@end

NS_ASSUME_NONNULL_END
